Harrow.



Patented Dec. 26, I899;

U. D. MILLER.

H A B B 0W.

(Application filed Jan. 16, 1899.)

(No Model.)

[NVE/VTOR WITNESSES I I I UNITED STATES PATENT EErcE.

UPSURE D. MILLER, OF NEW PHILADELPHIA, OHIO, ASSIGNOR TO JOHN ll. BROWN,OF RURAL RETREAT, VIRGINIA.

HARROW.

SPECIFICATION forming part of Letters Patent No. 640,008, dated December26, 1899.

Application filed January 16, 1899. $erial No. 702,340. (No model) T0aZZ whom it may concern.-

Be it known that I, UPsUEE D. MILLER, a citizen of the United States,residing at New Philadelphia, in the county of Tuscarawas and State ofOhio, have invented new and useful Improvements in Harrows, of which thefollowing is a specification.

My invention relates to improvements in harrows, and pertains to animproved manner of holding the tooth at the point of the harrow in avertical or an inclined position.

The object of my present invention is to provide the nose or point of aharrow with an elongated slot and a clamping-wedge adapted to be placedin front of or behind the tooth for holding it in a vertical or aninclined position.

In the accompanying drawings, Figure 1 is a perspective view of a harrowembodying my invention. Fig. 2 is a detached perspective view of thenose-piece. Fig. 3 is a longitudinal sectional view through thenose-piece, showing the tooth in the rearwardly-inclined position. Fig.4 is a similar view showing the tooth clamped in a vertical position.

Referring now to the drawings, A indicates the side bars of the harrow,which are constructed of L-shaped angle-irons, as shown, and B is thenose-piece. This nose-piece is provided at its side with thelongitudinal recesses a, which receive the vertical flanges of theangle-irons A, as shown, and the bolts D passed transversely throughthese vertical flanges of the nose-piece and the side bars,

thus clamping them securely and firmly t0-v gether. The nose-piece isprovided with the elongated opening I), the front wall of which isinclined rearwardly, as shown at c, and the tooth G passes through thisvertical elongated opening and when held in a rearwardly-inclinedposition rests against the forwardly-inclined wall of the opening.Aclamping-block H is placed in the elongated opening behind the tooth G,the forward end of this clamping block or wedge H being correspondinglyinclined to fit against the inclined rear face of the tooth, the rearwall of the said block or wedge being straight to fit against the rearstraight wall of the elongated opening, as clearly illustrated. Avertical opening (Z is and the block transferred in front of the toothand drawn downward in the same manner by means of the nut on the upperend of the bolt, and thus clamping the tooth in position by the blockbeing forced rearward owing to the engaging inclined faces of the frontwall of the elongated opening and the front edge of the block, as willbe readily understood.

From the above description it will be noted that I am enabled to readilyand quickly change the tooth in the nose-piece from a vertical to arearwardly-inclined position, or vice versa, by simply shifting thewedge-block from the front to the rear, or vice versa, of the tooth, theconstruction being simple yet effective and durable.

The tooth in the nose-piece has but the rearward inclination; but whenthe machine is used for the plowing process I find it best to have thefront tooth inclined rearward or to be straight rather than to inclineforward for the reason that if inclined rearward it tends to keep theharrow to some extent from digging into the ground, and the depth atwhich the forwardly-inclined teeth enter the ground can be regulated bythe vertical adjustment of the front tooth, which inclines rearward. Thefront tooth inclining rearwardly also serves to shed the trash ratherthan to pick it up, as would otherwise be the case if it extended in aforward inclination. It will thus be seen that by having the front toothto inenter the ground, and therefore to that extent regulate the depththe teeth shall cut into the ground, which is found to be a decidedadvantage in barrows of this type.

Having thus described my invention, what I claim, and desire to secureby Letters Pat ent, is--' 1. A harrow comprising l;-shaped side bars, aV- shaped nose-piece having vertical re cesses in its sides to receivethe vertical flanges of the shaped side bars, and clamping-bolts passingthrough the vertical flanges of the side bars and the nose-piece,substantially as described.

2. A nose-piece for harrows having a vertical horizontally elongatedtooth opening adapted to receive a tooth, and a wedge placed in saidopening and adapted to abut against the tooth and one end Wall of theopening, and a clamping member for said wedge-shaped block,substantially as described.v

3. A nose-piece for harrows having a vertical horizontally-elongatedopening, one end wall of the opening being inclined, a tooth within saidopening, and a block having one edge inclined to fit against theinclined face of the tooth and the clamping member for the block,substantially as described.

4. A nose-piece for barrows having a vertical and horizontally-elongatedopening adapted to receive a tooth, a tooth situated therein; and awedge-block situated in the opening, one end of the block engaging oneend of the opening and the opposite end engaging the adjacent face ofthe tooth, the block having a Vertical opening and a bolt passingthrough said opening with its head engaging the walls of the saidopening and a nut situated upon the opposite end of the bolt andengaging the block for forcing it downward and wedging it to positiontherein,substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

UPSURE D. MILLER.

Witnesses:

' P. S. OLMSTEAD, WM. R. SHARP.

